Method of making metal barrels and the like



Patented 2D, 1930 PATENT oFFlcE JOHN J'. GAIN, Oil?V BAYONNE, NEW JERSEYMETHOD or MAKING METAL BARRnLs AND THE LIKE Application Vfiled. J une27,

This invention relates to improvements in a method of making metalbarrels and the like and the principal object is the provision of amethod whereby metallic containers such as barrels may be readily madeon a production basis from pre-formed or pre-shaped metal and which willbe strong and secure in construction and capable of standing extendedusage and rough handling.

A further object of this invention is the provision of a process bywhich a sheet of metal is pre-shaped so as to be convex longitudinallythereof and also having a vgroove or grooves formed longitudinallythereon, this pre-'shaped metallic sheet being then cut into lengths,the lengths being bent into cylindrical form so as to form the body ofthe barrel, such as disclosed in my copending application for patent onmetallic drum barrel or con'tainer, Serial No. 229,310 filed October 28,192

To the accomplishment of the foregoing and such other objects as. mayhereinafter appear, this invention consists in the process or methodhereinafter described and then sought to be defined in the appendedclaims, reference being had to the accompanying drawings forillustrative purposes only.

In the drawings,

Fig. 1 represents a perspective view of a small portion of a metallicsheet after it has been rolled or otherwise shaped in one step of my newmethod or process, it being understood that the concavity shown and thegrooves shown extend the full length of the sheet.

Fig. 2 represents a perspective view of the body of a barrel formed ofone piece construction of suitable length cut from the` preshaped sheetshown in Fig. 1, and bent into cylindrical form.

Fig. 3 represents a perspective view of the body of a barrel formed intwo parts cut from the pre-formed metal sheet of Fig. 1 and bent intocylindrical form to complement each other to form the barrel body.

I am aware that there have been numerous attempts to make metallicbarrels and similar containers. For the most part these structures havebeen composed of a large number 192s. serial No. 288,565.

of parts which have to be assembled and se cured together involvingcomplication of work and numerous joints and fastening means with theresultant disadvantagesof the possibility of breakage and disassembling,i and weakness in structure;V It vhas also been proposed to makemetallic barrels ofshe'ets of f material rolled into cylindrical formand then to shape. these barrels with the normal barrel bilge, but sofar as I am aware, this 4has never leo been satisfactorily done in sucha way as to be commercially practicable in making a metallic barrel ofgeneral utility.

In my new method or process the resultant barrel is composed of aminimum number of vparts, the bilge being formed in the sheet of metalwhen the same ,is rolled. In other words, the metallic sheet which formsthe /body of the barrel is pre-shaped with the characteristic barrelbilge during the rolling operationo-i1 the sheet of metal so as toprevent the introduction of flaws, inequalities and breaks `into thesheet metal, which occur when the shaping operationl is attempted afterthe sheet of metal is originally rolled.

In other words, in order to express this idea a little more clearly,when the sheet metal is being rolled it is of course being expanded andstretched in vall directions and during this operation, in my method orprocess, the sheet 80 1 is so rolled as to form the longitudinallyextending c'onvex portion 2 throughout the full length thereof, see Fig.41. It is this convex portion which forms the characteristic barrelbilge when the barrel is assembled. At the same time, or rather duringthe same operation,I also form the longitudinally extending grooves 3 inthe sheetvof metalwhich when lthe barrel body is assembled, receive thewie shaped, the barrel lbody may be formed of one length or portion ofmetal, as indicated in Fig. 2, or it may be formed of two lengths, asindicated in Fig. 3. This is especially to noted in contradistinction tosuoli metallic barrels as use a large number of parts or staves similarto the standard wooden barrel, in that respect. i .i

In making metal barrels in which the body is composed of a single lengthof the preshaped metal sheet, see Fig; 2, this sheet is cut intoportions of such length that they may be bent or curved into a completecylinder. Ordinarily, with a .normal bilged barrel, the length is cut soas to have alonger central part which isl to form the bilge, sc that inbending, the' edges will meet and the result will'be a bilged barrel. Ifa larger or smaller bilge is desired, different shaped lengths must becut from the sheet as will be obvious to `one skilled in the art. Thismay be-done onvarious forms of apparatus, most `of which are quitesimple and as the opera- 'tion involves no stretching or straining ofthe metal, no damage or weakening of the body ofthe barrel will result.When bent .into the cylindricalv form the body of the barrel will havethe appearance of Fig. 2, vwherein 4 represents the body as a whole; 5the joining seam where the ends of the length ofthe pre-shaped metallicSheet may be-joined or fastened by any suitable means, Vif necessary; 6the characteristic barrel bilge `or bulge; and 7 the grooves formedinternally thereof nearr the top and bottom to receive the heads of thebarrel, as is Well understood.

In the barrel shown in Fig. 3 the body is f formed of two lengths of thepre-shaped metal sheet and in this case each length is bent into asemi-cylindrical form, so that the two parts complement each other toform the :completed barrel body.` Otherwise, the structure and theoperation are the same. .Of course it-is to be understood that barrelbodies may be formed by this method or process-having a greater numberof parts than those shown, but one of the advantages 4of using thismethod or process resides in the fact that the barrel body may becomposed ofv a minimum number of parts and be of substantially integralconstruction with the resultant maximum factor of safety.

' It is obvious that this process is advantageous in that metal sheetsconstructed in aci cordance therewith may be conveniently nested forshipping and storing as they are made in standard and complementarysizes. The matter of assembling them is simple as the parts beingstandard will readily iit each other'.l The barrel when assembled, willbe strong in construction by virtue of its forniation and due to thefact that no flaws or weaknesses are developed in the material duringthe making of the same.

What I claim is:

l. The method or process of making metal barrels and the like whichincludes pre-shaping a sheet of metal during the rolling thereof to forma longitudinally extending convex portion or bilge therein, cutting saidpreshaped metal sheet into lengths and bending said lengths intocylindrical shape so as to form a barrel body.

2. The method or process of making metal barrels and the like-includingthe step of presliaping a sheet of metal while it is being rolled toform a convex portion or bulge therein, cutting said metal sheet intolengths and bending said lengths into cylindrical shape to form the bodyof the barrel.`

3. The method or process of making metal barrels and the like includingpre-shaping a sheet of metal during the rolling thereof so .as toprovide a convex portion or bulge therein and also forming at the sametime, a plurality of grooves therein, cutting said metallic sheet intolengths and bending said lengths into cylindrical shape, the convexportion forming the bilge of the barrel body and the grooves beingadapted to receive the heads of the barrel.

4c. The method or process of making metallic barrels and the likeincluding pre-shaping a metal sheet during therolling thereof to form aconvex portion extending longitudi# nally thereof and a plurality ofgrooves extending longitudinally thereof and near its edges, cuttingsaid pre-shaped metallic sheet into lengths and bending said lengths toform the barrel body, said convex portion forming the bilge and saidgrooves being adapted to receive the heads of the barrel.

5. The method or process of making metal barrels and the like whichcomprises rolling a sheet of metal with a convex intermediate y portion7the side edge portions being flat, and

at the same time rolling grooves into said side edge portions, cuttingsaid pre-shaped sheet of material into lengths and bending said lengthsinto cylindrical form to provide a barrel body.

6.V The method or process of making metallic barrels and the like,including preshaping a sheet of metal during the rolling thereof so asto provide a. convex portion or bulge therein and also forming at thesame time a plurality of grooves therein, cutting a suitable .length outof said metallic sheet and bending said length into cylindrical shape,

the convex portion forming the bilge of the barrel body and the groovesbeing adapted to receive the heads of the barrel. Y

7. The method or process of making' metallic barrels and the like,including preshaping a sheetof metal during the rolling thereof so as toprovide a convex portion oi bulge therein and also forming at the sametime a groove therein, cutting said metallic sheet to form a sheet ofthe desired dimensions, and

bending said sheet into cylindrical shape, the convex portionformingthe-bilge of the barrel body and the groove being adapted to receive ahead of the barrel.

8. The method or process of making metallic barrels and the like,including preshaping a sheet of metal so as to provide a convex portionor bulge therein and also forming at the same time a groove therein,cutting a suitable length out of said metallic sheet and bending saidlength into cylindrical shape, the convex portion forming the bilge ofthe barrel body and the groove being adapted to receive a head of thebarrel.

9. The method or process of making metallic barrels and the like,including pre'shaping a sheet of metal so as to provide a convex portionor bulge therein and also forming at the same time a plurality ofgrooves therein, cutting said metallic sheets into lengths and bendingsaid lengths into cylindrical shape, the convex portion forming thebilge of the barrel body and the grooves being adapted to receive theheads or' the barrel.

x In testimony that I claim the foregoing, I L" have hereunto set myhand this 11th day of J une, 1928.

JOHN J. GAIN.

